finding past water is the first step to find out if the environment was able to sustain life. >>> time, now, for weather across the nation. heavy downpours and flooding around boston, new york, philly and d.c. thunderstorms from the ohio valley to memphis and little rock. scattered showers along the gulf coast. and drenching rain in west texas. showers in the rockies. >>> 70s from billings to albuquerque. and in the middle of the country, from minneapolis to kansas city. 80s across the south. >>> and when we come back, get ready for a ferris wheel that can carry, get this, more than 1,400 riders at 1 time. >> if that doesn't get stuck. >>> more big banks getting caught up in a wave of cyber attacks. but who's behind them? >>> and we're talking about mom genes, the dna that makes a woman want to be a mother. >>> welcome back. many customers still can't check their bank accounts online. the cyber attack where hackers launch a barrage of traffic overwhelming the site. pnc is the latest target. but bank of america, fells fargo and u.s. bank were also hit. a middle eastern group is believed